Postal entity record
US 60045 Postal Code Data Source-backed
60045 postal code facts for Lake Forest, US: region, coordinates, source, and nearby postal codes.
CountryUS
PlaceLake Forest
RegionIL
Nearby rows12
Key metadata
| Place | Lake Forest |
|---|---|
| Admin area | Illinois / IL |
| Local area | Lake |
| Coordinates | 42.2374, -87.8482 |
| GeoNames accuracy | 4 |
| Source | GeoNames postal code data |
| License | GeoNames postal data; provided as-is with attribution required. |
| Snapshot date | 2026-06-02 |
What this record means
This row links US 60045 to Lake Forest, the available admin area, centroid coordinates, source accuracy, and source snapshot metadata.
Use it as a reference-data join for cleaning CRM rows, grouping operational reports, preparing territory QA, or checking whether an imported postal value has a source-backed match.
What the centroid can support
The latitude and longitude represent a postal centroid from the source snapshot. They are useful for approximate map previews, nearby-record review, deduplication checks, and distance-based QA.
They should not be treated as an official delivery boundary, address-level geocode, tax boundary, or service-area guarantee.
Sample CSV enrichment output
| Input field | Added output | Example value |
|---|---|---|
| postal_code | matched_place | Lake Forest |
| postal_code | admin_area | Illinois |
| postal_code | centroid | 42.2374, -87.8482 |
Nearby postal codes
| Code | Place | Region | Distance |
|---|---|---|---|
| 60037 | Fort Sheridan | Illinois | 2.9 mi |
| 60040 | Highwood | Illinois | 2.9 mi |
| 60044 | Lake Bluff | Illinois | 3.1 mi |
| 60035 | Highland Park | Illinois | 4.6 mi |
| 60088 | Great Lakes | Illinois | 4.6 mi |
| 60015 | Deerfield | Illinois | 4.7 mi |
| 60069 | Lincolnshire | Illinois | 4.8 mi |
| 60048 | Libertyville | Illinois | 6 mi |
| 60064 | North Chicago | Illinois | 6 mi |
| 60061 | Vernon Hills | Illinois | 6.4 mi |
| 60062 | Northbrook | Illinois | 7.7 mi |
| 60065 | Northbrook | Illinois | 7.7 mi |